/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.shortlink.service.handle.filter.user;

import com.shortlink.common.constants.AppHttpCodeEnum;
import com.shortlink.common.exception.ClientException;
import com.shortlink.pojos.dto.req.UserLoginReqDTO;
import com.shortlink.service.IUserService;
import lombok.RequiredArgsConstructor;
import org.springframework.stereotype.Component;

import static com.shortlink.common.constants.AppHttpCodeEnum.USER_EXIST;

/**
 * 用户注册用户名唯一检验
 * 公众号：马丁玩编程，回复：加群，添加马哥微信（备注：12306）获取项目资料
 */
@Component
@RequiredArgsConstructor
public final class UserRegisterHasUsernameChainHandler implements UserLoginCreateChainFilter<UserLoginReqDTO> {

    private final IUserService userService;

    @Override
    public void handler(UserLoginReqDTO requestParam) {
        if (!userService.hasUsername(requestParam.getUsername())) {
            throw new ClientException(AppHttpCodeEnum.USER_EXIST);
        }
    }

    @Override
    public int getOrder() {
        return 1;
    }
}
